July 22-July 28

[eeholmes]

William

• Keeping working on simulated data
• Determine how to detect changes in cycle
  • linear trend in the mean level
  • changing amplitude over time
  • breaks like Anthony showed

Anthony

• Look at William's data to get better understanding of the 2 year cycle blip
• Try to replicate the Nature paper on latitude
  • latitude homogenization
• make map showing the lat/lon points that you are using

[eeholmes]

JULY 29

Anthony

• simulated annual data -> only peak at 1 year

• tried to replicate the spatial homenity should increase

• Get the DAILY data to run in William's wavelet code

• correlation plot

• get the spatial average of the land temperature; SST

SST, Daily Optimum Interpolation (OI), AVHRR Only, Version 2, Final, Global, 0.
25°, 1982-2020
https://coastwatch.pfeg.noaa.gov/erddap/griddap/ncdcOisst2Agg.html

William

Reading papers using wavelet analysis in oceanography

• Do your methods work on monthly data?
• Work with Anthony's data some.
  Practical Guide to Wave
  https://www.jstor.org/stable/26232616
  Climate Signal Detection using wavelet transform: How to make sing
  https://paos.colorado.edu/research/wavelets/bams_79_01_0061.pdf

[eeholmes]

@XuweiyiChen Post wavelet refs that were esp helpful here

[XuweiyiChen]

Lau, K. M., and Hengyi Weng. “Climate Signal Detection Using Wavelet Transform: How to Make a Time Series Sing.” Bulletin of the American Meteorological Society, vol. 76, no. 12, 1995, pp. 2391–402. JSTOR, http://www.jstor.org/stable/26232616. Accessed 31 Jul. 2022.

This one is particularly interesting. For more papers, please read the section 1 of this paper.

Torrence, Christopher and Gilbert P. Compo. “A Practical Guide to Wavelet Analysis.” Bulletin of the American Meteorological Society 79 (1998): 61-78.

I am working on this paper.

Gerald Kaiser. 1994. A friendly guide to wavelets. Birkhauser Boston Inc., USA.

For reference of details of wavelets, please refer to this paper.